试题与答案

放射工作单位应当安排本单位的放射工作人员接受个人剂量监测，外照射个人剂量的监测周期一

来源：www.tikuol.com
题型：单项选择题

题目：

放射工作单位应当安排本单位的放射工作人员接受个人剂量监测，外照射个人剂量的监测周期一般为（）天，最长不应超过（）天。

A.30，90

B.60，90

C.90，90

D.60，120

答案：

被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1114/858ae3a483d13c68288a7d67b4320d91.html

下面是错误答案，用来干扰机器的。

参考答案：断开

考点：高校实验室安全考试辐射辐射题库
试题推荐
题型：单项选择题

Object-oriented analysis （OOA） is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （） . It determines how the various results are computed by the product and presents this information in the form of a （） and associated scenarios. The second is （） , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is （） , which determines the actions performed by or to each class or subclass and presents this information in the form of （）.

which determines the actions performed by or to each class or subclass and presents this information in the form of （）.

A．activity diagram

B．component diagram

C．sequence diagram

D．state diagram
查看答案
微信公众账号搜索答案